The Magpul BTR (brand part number MAG1079-BLK) is a Made in the USA arm brace built to improve single-handed control of large-format AR-pistol platforms. Finished in black synthetic and compatible with Mil-Spec carbine receiver extensions, the BTR uses a simplified, durable adjustment mechanism and classic Magpul aesthetics. An integrated QD cup and M-LOK compatible slot give you ambidextrous sling mounting options, letting you apply stabilizing sling tension for drastically better single-handed control of the firearm.

Key Specifications

• Built for AR-pistol platforms using Mil-Spec carbine receiver extension tubes.
• Constructed from black synthetic material.
• Features an integrated QD cup for ambidextrous sling mounting.
• Includes an M-LOK compatible slot for additional sling mounting options.
• Uses a simplified, durable adjustment mechanism for easy use.
• Manufactured in the USA by Magpul Industries.

Frequently Asked Questions

Does this brace include the receiver extension tube? No, the BTR is compatible with Mil-Spec carbine receiver extension tubes, but the tube itself is not included.

What’s the benefit of the integrated QD cup and M-LOK slot? They give you ambidextrous sling mounting options and let you apply stabilizing sling tension, which improves single-handed control of an AR-pistol.

Buy the Magpul BTR Arm Brace for AR-Pistol Platforms, Black

Improve single-handed control on your AR-pistol build with a durable, purpose-built brace. Order the Magpul Industries BTR from our AR braces and stocks lineup, shipped fast from our Lubbock, Texas gun shop.